Objective To investigate the effect and the possible mechanism of osthole on proliferation and apopotosis of human cervical carcinoma Hela cells and its passible mechanism.Methods After cervical carcinoma Hela cells were incubated with different concentrations osthole,the cell proliferation activity was examined by MTT assay.The apoptosis rate and cellular ROS level were measured by flow cytometry.The Bcl-2 and Bax mRNA expression was determined by semi-quantitative RT-PCR.Results In comparison with the control group,osthole with different concentrations could obviously inhibit the Hela cells proliferation and accelerated the cellular apoptosis,lowered the expression rate of Bcl-2/Bax,raise the cellular ROS level in a osthole dose-dependent manner.Conclusion Osthole may inhibit Hela cell proliferation and accelerates the cells apoptosis,which might be associated with the increasing the cellular ROS level,promoting Bax expression and inhibiting Bcl-2 expression.

Objective Choose an easy method to screen the “leaky" phenotype SCID mice before experimental use. Methods IgG in SCID mice serum was assayed by three kinds of ELISA(sandwich ELISA, sandwich indirect ELISA and Avidin\|biotin sandwich ELISA). Results Avidin\|biotin sandwich ELISA is the most sensitive method of the three, and 41 SCID mice of 6～8 weeks old were assayed with this method. The average IgG of 40 SCID mice was 0 24?0 16mg/L, only one was 2\^3mg/L. The “Leaky" probability was 2\^4%.Conclusion\ The Avidin\|Biotin sandwich ELISA is an easy, sensitive and reliable method to screen“leaky" SCID mice.\;[

Objective To compare the clinical therapeutic effects of continuous veno-venous hemofiltration (CVVH) and continuous veno-venous hemodiafiltration (CVVHDF) for treatment of patients with multiple organ dysfunction syndrome (MODS).Methods A prospective observation was conducted, seventy patients with MODS admitted to the Department of Critical Care Medicine of the Affiliated Hospital of Zunyi Medical College from September 2013 to December 2016 were enrolled, and they were divided into a CVVH group and a CVVHDF group according to different treatment, 35 cases in each group. In the CVVH group, the ultrafiltration fluid flow rate was set at 1800 mL/h, while in the CVVHDF group, the flow rate was set at 2000 mL/h for both substitution fluid and dialysate, and the blood flow of the two groups was 150-180 mL/min. The changes of creatinine (SCr), urea nitrogen (BUN), pH value, HCO3-, helper T cell (Th1, Th2) and Th1/Th2 ratio were compared between the two groups before and after treatment for 24, 48 and 72 hours.Results With the extension of time, SCr, BUN were reduced in both groups after treatment compared to those before treatment, 72 hoursafter treatment they reached the lowest value, and the degree of change in CVVHDF group was more significant than that in CVVH group [SCr (μmol/L): 150.62±32.09 vs. 180.41±30.52, BUN (mmol/L): 7.31±2.19 vs. 9.06±2.36. allP < 0.05], after treatment; the pH value, HCO3- level in the two groups had a tendency at first elevated and then lowered, 48 hours after treatment they reached the peak values, compared with those before treatment, the differences were statistically significant [CVVH group: the pH value 7.42±0.08 vs. 7.25±0.10, HCO3- (mmol/L) was 22.49±5.11 vs. 15.65±4.16; CVVHDF group: pH value 7.41±0.04 vs. 7.24±0.11, HCO3- (mmol/L) 23.24±4.78 vs. 15.65±4.16, allP < 0.05], 72 hours after treatment, they began reduced (CVVH group: pH value, HCO3- were 7.39±0.09, 22.35±4.91 respectively, CVVHDF group: pH value, HCO3- were 7.38±0.06, 23.13±4.61 respectively), but they were still significantly higher than those before treatment, and at each time point compared between the two groups, no statistical significant difference was seen (allP > 0.05). With the extension of therapeutic time, Th1, Th1/Th2 in two groups were gradually elevated after treatment, and 72 hours after treatment they reached the peak values; Th2 showed a trend of gradual decrease and after 72 hours of treatment it reached the lowest value, and the changes in CVVHDF group were more significant than those in CVVH group [Th1 (×10-2): 1.51±0.12 vs. 1.21±0.11, Th2 (×10-2): 1.64±0.65 vs. 1.70±0.18, Th1/Th2: 0.91±0.14 vs. 0.71±0.15, allP < 0.05].Conclusion Both CVVH and CVVHDF can effectively remove inflammatory mediators and metabolic products, adjust the balance of acid and base, regulate immune system in the body of patients with MODS, and the CVVHDF is more effective than CVVH.

Objective:To explore risk factors of skin pruritus in peritoneal dialysis patients and the effect of individualized care intervention, to provide guidance for clinical practice.Methods:The total of 87 patients with peritoneal dialysis who were followed-up with pruritus in the Beijing Anzhen Hospital from January 2017 to June 2020 were selected. The Visual Analogue Scale (VAS) was used to evaluate the degree of pruritus, and the patients were divided into two groups: mild-to-moderate skin pruritus group (VAS≤6 points) and severe skin pruritus group (VAS>6 points). The risk factors of severe skin pruritus were analyzed by single factor and multivariate Logistic regression. The improvement of skin pruritus after 3 months of individualized nursing intervention was observed.Results:Among the 87 patients, the mild-to-moderate skin pruritus group and the severe skin pruritus group accounted for 64.4%(56/87) and 35.6%(31/87), respectively. Single factor analysis showed that the age, prevalence of diabetes, serum albumin, serum phosphorus, intact parathyroid hormone and C-reactive protein levels were (61.8 ± 11.5) years old, 33.3%(19/56), (36.3 ± 5.3) g/L, (1.6 ± 0.5) mmol/L, 328.4(144.9, 494.5) ng/L, 2.8(0.6, 8.3) ng/L in the mild-to-moderate skin pruritus group, and (67.0 ± 9.2) years old, 61.1%(19/31), (33.9 ± 4.8) g/L, (1.9 ± 0.3) mmol/L, 397.0(300.0,758.6) ng/L, 7.2(2.6, 17.2) mg/L in the severe skin pruritus group, the differences were significant between the two groups ( t values were -2.17, 2.14, -2.32, Z values were -2.28, -2.90, χ 2 value was 6.07, P<0.05). Logistic multivariate regression analysis showed that low albumin, high blood phosphorus and high C-reactive protein were independent risk factors for severe skin pruritus in peritoneal dialysis patients ( P<0.05). After 3 months of individualized care,18.4% (16/87) patients had complete remission,19.5% (17/87) patients significantly relieved, 55.2% (48/87) relieved, 6.9% (6/87) were ineffective, and the total response rate was 93.1%(81/87). Conclusions:More than one-third of peritoneal dialysis patients with pruritus are severe. Lower serum albumin, higher serum phosphorus and higher C-reactive protein are independent risk factors for severe pruritus in peritoneal dialysis patients. Individualized care can effectively improve pruritus in peritoneal dialysis patients.

Objective To investigate the inhibitory effect of favipiravir (T-705) on canine distemper virus (CDV) replication in Vero cells and DH82 cells.Methods The growth curves of CDV-11 strains from canine and CDV-3 strains from mink in Vero cells and DH82 cells were determined with indirect immunofluorescence assay and 50％ endpoint titration.The viability of Vero and DH82 cells was determined using the Cell Counting Kit-8.CDV inhibition at different concentrations of T-705 at different time points was measured .Results Cytotoxicity data showed that there was a moderate decline of viability in Vero cells after T-705 treatment, but no apparent cytotoxicity in DH 82 cells.T-705 significantly inhibited the replication of CDV-3 and CDV-11 in both Vero cells and DH82 cells in the test range of 2.441-1250 μg/ml. T-705 exhibited effective and stable antiviral activity when given at different time points post virus challenge .Conclusion Our results demonstrate that T-705 has effective antiviral activity and may be a promising anti-CDV drug candidate .

Objective To investigate mechanism involved in the differentiation of FBL-3 cells(eryth-roleukemia cells)induced by dendritic cells(DC). Methods To cultural the FBL-3 cells together with the DC supematant of different concentration for 72 hours,then we used the Wright's staining methed to record the ma-ture monocyte cell population, the transmission electron microscope to observe the ultramicrostructure, the flow eytoraetry to detect the expression rate of the surface molecular CD14. Results The Wright's staining methed, the transmission electron microscope and the flow cytometry all presented that after being induced by the super-natant of the DC ,the FBL-3 cells can partly differentiate into monocytes,inversion monocyte consistent with the personal characteristics. And the intensity of the DC supernatant was connected with interleukin-12. Conclusion The DC supernatant can induce the FBL-3 cells into monocytoid cell, the differentiated cells correspond to monocyte in macro-appearance,uhramicrostructure and phenotype. The competence of the DC supematant are partly concerned with interleukin-12.

Objective To understand the pathogenesis of primary hypothyroidism associated with polymyositis-like syndrome.Method Four cases were presented and the clinical characteristics were analyzed.Results All of the four patients were male.Complaints of weakness primarily affecting proximal muscles and elevation of muscle enzymes were presented.Primary hypothyroidism was diagnosed after clinical examination.Complaints of weakness and the elevated muscle enzymes were all improved after the substitution of thyroxine.Conclusion Hypothyroidism could cause polymyositis-like syndrome,and thyroid function should be screened when elevation of muscle enzymes is presented.

OBJECTIVETo compare the difference in the efficacy on thoracic facet joint disorder between the combined therapy of electroacupuncture and manual reduction and the simple manual reduction.

METHODSOne hundred and sixty patients were randomized into an electroacupuncture and manual manipulation group (group A) and a simple manual manipulation group (group B), 80 cases in each one. In the group A, Ashi points and three pairs of Jiaji (EX-B 2) bilateral to the painful sites were selected. The perpendicular puncture was used at Ashi points, the oblique puncture was used at Jiaji (EX-B 2) and connected with electric stimulation for 20 min, additionally, the corresponding manual reduction was adopted at the sites of facet joint disorder. In the group B, the simple manual reduction was applied to the affected sites. Acupuncture was given once every day, the manual reduction was applied once every 10 days. The treatment of 10 days made one session. The efficacy was analyzed statistically at the end of two sessions of treatment. Before and after treatment, McGill pain scale was adopted for the value statistical analysis. PRI score, VAS score and PPI score of patients were calculated before and after treatment and compared in the two groups. The efficacy was compared between the two groups.

RESULTSThe curative rate was 56.3% (45/80) in the group A, which was better than 18.8% (15/80) in the group B (P< 0.01). The total effective rate was 95.0% (76/80) in the group A, which was better than 76.3% (61/80) in the group B (P<0.01). The scores of PRI, VAS and PPI after treatment were all improved significantly in the two groups (all P<0.05), in which, the results in the group A were better than those in the group B (PRI: 4.00 +/- 0.97 vs 5.44 +/- 1.16, VAS: 3.29 +/- 0.72 vs 3.87 +/- 0.81, PPI: 1.07 +/- 0.74 vs 1.64 +/- 0.90, all P<0.05).

CONCLUSIONThe combined therapy of electroacupuncture and manual manipulation achieves the superior efficacy on thoracic facet joint disorder as compared with the simple manual manipulation. The combined therapy relieves the symptoms of thoracic facet joint disorder and reduces the severity of disorder.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Electroacupuncture ; Female ; Humans ; Male ; Middle Aged ; Thoracic Diseases ; therapy

Objectives To investigate the effect of proliferation and invasiveness by turmeri cvolatile oil on human neuroblastoma cell line SH-SY5Y. Methods Cells were incubated with different concentrations of TVO in vitro. Then cell survival rate was measured by MTT assay. The effect of 160 mg/L TVO on cell migration was assessed by cell scuffing test. Invasive ability of cell was detected by Transwell test. Apoptosis of cells was detected observed by flow cytometry assay. Results Survival rate of SH-SY5Y cells decreased and apoptisis rate was abated with elevated TVO concentration and prolonged cultivation time. Level of cell migration was lower than that in control group after being cultured with 160 mg/L TVO solution for 12 , 24 and 48h. With the in-crease of TVO concentration , the invasion ability of cells gradually decreased , and the invasive force and cis-platin had no obvious difference when the concentration of drug reached 160 mg/L. Conclusion The prolifera-tion of cells can be inhibited by inhibiting the proliferation and invasiveness ability with TVO.

Objective To investigate the effect of Zingiber corallinum oil ( ZCO ) on apoptosis and proliferation of cervical carcinoma cell line HeLa. Methods HeLa cells were treated with different concentrations of ZCO(5-80 mg·L-1)in vitro. Cytotoxicity rate was determined by CCK-8 assay. The morphological changes was observed using inverted microscope after AO/EB staining. Caspase-3 activities were measured with a colorimetric method. Protein level of hsp-70 were detected by Western blotting. Cell cycle and apoptosis were analyzed by flow cytometer ( FCM ) . Results ZCO exhibited effect of proliferation inhibition and apoptosis-inducing on the growth of HeLa cells in a dose-dependent manner. Caspase-3 activities increased in a dose-dependent manner while the expression of hsp-70 decreased. Cell cycle was arrested in G2/M phase. Conclusion ZCO exhibites a marked effect of proliferation inhibition and apoptosis-inducing on HeLa cells. The mechanism of ZCO might be activating the key enzyme in apoptotic pathway, so that the expression of hsp-70 is down-regulated, and cell cycle is arrested in G2/M phase.